Chart 1/2" Female Bayonet
Chart's dissimilar metal bayonet design uses the thermal contraction/expansion that low cryogenic temperature gives to metals. It provides a mechanical connection for sections of vacuum jacketed pipe that have a leak tight shrink fit seal.
When cryogenic liquid passes through the bayonet, the stainless steel nose of the female bayonet contracts and forms a tight seal on the nose of the male bayonet. The nose piece of the male bayonet is precise machined out of INVAR36. INVAR36 was developed, with the help of NASA, to produce a material that does not shrink when exposed to cryogenic temperatures. A secondary o-ring seal is used at the flange. To disassemble the system, simply drain the line of the liquid and warm it to ambient temperature.
Key Features:
- 1/2" VIP Female Bayonet
- Lowest heat leak in the industry
- Most reliable cryogenic connection on the market
- Back-up flange options available
- Easy to install or disassemble
- Meets ANSI B31.3 specifications
- Also available in 1", 1-1/2", and 2" pipe sizes